The special added particles have remarkable antibacterial deodorizing effect.Hold more cat litter and reduce times to change litter.Comply with natures of cat, without cramping and constraint.The cat will be more comfortable and easier for training.Absorb more excrement and reduce odor.The 25cm height can prevent spattering of sand.here are specific cushions added for the four angles at the bottom to prevent scratch on floor and fiber burring on carpets.his model of cat litter box will be the most economical choice.